Clevis construction.



O. H. EDDY.

CLBVIS CONSTRUCTION.

APPLICATION FILED JU 11111111 2,

157126,42?, Patented Ja1.26,1915.

2 SHEETS-SBEET 1.

y ma Q 0. H. EDDY.

' GLEVIS CONSTRUCTION.

APPLIOATION FILED JUNE 19, 1912.

Patented Jan. 26, 195.

2 sums-SHEET 2.

farfd i ./mzf? THE NORRIS PETERS CO.. PHOTO-LITHO., WASHINGTON, D. C.

'entre sinn rarnnr iena GSCAR. l. EDDY, OF GREENWICH, NEW YORK, ASSGNOR.'EG W'. EDDY PLOVJ CO., 0F GREENWICH, NEW" YRK, A @DEPOR-TICE 0F NEX/VYORK.

GLEVIS CONSTRUCTON.

maaier.

Application led June 19, 1312.

To all whom it may concern Be it known that l, Osc-An l-l. EDDY, acitizen of the United States, residing at Greenwich, in the county ofYWashington and State of llew York, have invented new and usefulImprovements in Clevis Constructions, of which the following is aspecification.

The present invention relates to elevis constructions, and itcomprehends, briefly, an improved clevis which is especially designedfor attachment to two-way riding or sullry plows 'to maintain the lineof vdraft in proper position at all times with reference to theparticular plow in use.

iin embodiment of the invention is illustrated in theaccompanyingdrawing, wherebeing plowed, whereby the rod which connects the frontends of the two beams is disposed at an angle to the horizontal; thisin-` ation of the connecting rod causes the letree hook carriedtherebj.7 to slide toward the beam of the working plow, thus maintainingthe line of draft in correct position relative to that beam. On theother hand, where the furrow is being turned upon a hillside, theconnecting rod often occupies an approximately horizontal position, andif the working plow strikes against a stone or the like the hook slidestoward the be m of the idle plow and remains adjacent the same untillmoved back manually to its proper position and the tension is relieved.During the time that the hook occupies a position adjacent the beam ofthe idle plow, the line of draft is correspondingly changed, with theresult that the effective operation of the working plow is impaired, aswill be understood. To overcome this defect, it is proposed to connectthe aforesaid rod to the beams in such a manner and by such means as toinsure the retention of the hook at all times in position relative tothe beam of the Specification of Letters Patent.

limatented dan. 2li, i915.

serial no. VeeG/i5.

working plow, irrespective of which plow is being used, and, also, ofthe position of the plow beams relative to each other. These featuresconstitute the subject matter of the present case, and will be fullyexplained and lescribed hereinafter, the appended claims.

Referring more particularly to the drawings, 5 and 6 indicate,respectively, the rightand leftland beams of two-way sulky plow, and 7and 8 the corresponding shares connected thereto. rllhese parts may haveany preferred or conventional construction, and, hence, require noextended description, and it may also be stated that any suitable `leversystem 9 or the like may be provided for depressing the front end of thebeam carrying the particular share which it is desired to use.

Each beam is provided at its front terminal with a. clevis of the typehereinafter described, the two clevises being connected by the rod 10,upon which, in turn, is slidably mounted the whiilletree hook 11. Asshown in Fig.Y 2, each clevis preferably consists of a fixed member 19and a movable member 13, the first-mentioned member being formed with aforked rear portion 14 which straddles and is fastened to the beam endby a bolt 15 and with a wide flat front portion 16 which occupies aplane at right angles to that of the fork legs, while the inner ends ofthe said fork legs are also enlarged or widened and are formed withvertical series 'of registering openings 17 in'which the front fasteningbolt 18 is interchangeably engaged, this construction allowing of avertical adjustment of the members in question.

The front clevis members 13 are designed for swinging movement and,also, a limited adjustment horizontally, relative to the rear members,to which end their rear portions 19 are forked, as shown, and straddlethe flat forward portions or tongues 16, the latter being formed, each,with a transverselyarranged series of perforations 2O through which theconnecting pivot bolt 21 is vinterchangeably passed. These members havean extensible connection with rod 10, to permit the same to vary itsposition with respect thereto. In the present embodiment of theinvention, spring-controlled devices are employed for the purposeindicated, such devices enabling the rod to assume an angular positionwith respect to the clevis members,

and pointed out in oflthe front portions 24-of the clevis memf bers,which portions are preferably constructed as skeleton Vorv openrectangular housings formed at their rear sides with the forkedextensions 19. The front sides of these housing are slightly widened andare formed at their vertical edges with in-turned flanges 25 that serveto produce seats for the forward end of the springs, the seats beingprovided, in turn, with central perforations through which the boltstems slide. The rear ends of the springs bear against flanged or seatedwashers 26 which are held by the pressure of the springs againstterminal nuts 27 carried by the bolt stems.

rlhe front clevis members 13, which, as already stated, comprise thehousings 24 and the forked extensions 19, are preferably constructed ofmalleable metal, the spaces between the fork legs opening into the houseings and producing, in consequence,` pairs of shoulders 28, againstwhich the washers 26 are normally held by the springs. These spaces aredisposed in alinement with the eye bolts 22,'s0 as to normally receivethe nuts 27, and are suiiiciently long to prevent the latter fromcontacting with the ends of the tongues 16, thus precluding interferenceof the parts with each other during adjustment. l i

When the plow is in operation, the Vdepressed front end of the beam ofthe works ing share causes the connecting rod 10 to becomey slightlyinclined to the horizontal, with the result that the whiiiletree hook 11at once slides toward the lower rod end and into contact with the eye ofthe adjacent bolt. rlhe draft exerted upon the hook and rod will then betransmitted directly to vthat bolt, and by reason of the extensibleconnece tion between the latter and the adjacent housing, will cause thebolt to move forwardly and the rod to form an acute angle vwith saidbolt, with the hook located at .the downwardly directed apex of the saidangle, in which position the hook will be held until the end of thefurrow is reached andthe beam raised. When the other beam issubsequently lowered, the operation will be the reverse of that abovedescribed, the hook being held at the opposite end of the rod and incontact with the eye of the other bolt. These two positions of the hookare represented in Figs. l and 2, the right-hand beambeing depressed inthe first figure, and the left-hand beam inthe second figure. lt will beseen, therefore, that by providing the extensible connections betweenthe ends of v sume a position at an acute angle to the bolt associatedwith that clevis, the tension exerted by the draft upon the hoolrforcing the latter to remain in position at the apex of the angle. Inthis way, the line of draft is maintained automatically in properposition at all times with relation to the particular plow that is beingused.

l claim as my invention:

l. The combination, with a two-way plow including a pair of separatebeams each provided at its front end with a clevis, of a rod having-Vanextensible springcontrolled connection at each end with the adjacentclevis, and a Vwhifiletree hoolr slidable upon said rod toward either ofsuch connections, to extend the same and draw the' adjacent end of therod forwardly away from the corresponding clevis, wherebyV said rod iscaused to form an acute angle with the extended connection, and saidhook is held by the draft exerted thereupon at the apex of said angle. Y

2. rlhe combination, with a two-way plow including a pair of separatebeams, and means for depressing the front end of veither beam, of aclevis connected to the front end of each beam, a spring-controlled eyebolt carried by each clevis and disposed longitudinally of thesame,a'rod having its ends engaged with the .eyes of said bolts, saidrod being'arranged to assume a'posi- Ytion inclined to the horizont-alwhen the end of either beam is depressed, and aV nesses.

OSCAR H. EDDY.

Witnesses: -v Y JAMESV RICHARD SK'INN'ER, MICHAEL SONN.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of' Patents,

Washington, D. C.

